Stuffed Crocodile

Mazes, Martians, Mead

[Circûmflex] Slaughtering Holy Cows

A person with no fighting skill has a 50/50 chance of hurting someone with no armor at all.

A person with one level of fighting skill has a 50/50 chance of hitting someone with minimal armor.

A person with ten levels of fighting skill has a 100% chance of hitting someone with no armor, and a 90% chance of hitting someone with minimal armor.

Scale up and down as needed.

You know, one of the things I loved about 3rd edition D&D, when I made the switch from AD&D 2nd edition, was how easy refereeing fights became. I never liked THAC0, and I found it a bothersome quirk of an otherwise easy to understand system.

In hindsight the problem was that I was introduced to RPGs through DSA, and there combat is done via attack rolls and defense rolls. It had problems of its own which made combats last way too long (a fight between people with low attack and high defense could take hours), but at least everyone intuitively grasped the concept.

And then 3rd edition came along and it all became easier. +1 AB vs. AC 1 was exactly 50%, what could be easier?

When I look at older editions of D&D this always has been the case. It has been hidden away under weird formulations and strangely formatted tables, but if one actually bothers to do the math you can reduce the whole combat section of D&D to 3rd edition’s formula of

d20 + Attack Bonus > 10 + Armor Class

The differences were in the details. And a lot of those details were brought over from other games.

Why exactly has early D&D armor class that gets better the lower it gets?

Well, it was like that in a Civil War naval game Dave Arneson played, and he brought it over into D&D.

Why did it start at 9, and not at 10?

Because all the characters the rules cared about were at least level 1, and had as much fighting prowess.

Speaking about fighting prowess: why did it take until 3rd edition to straighten out that?

Pre-3rd edition rules had weird quirks in there that might have been intentionally designed like that, but which ultimately didn’t matter.

In AD&D the fighter stays at +1 attack for two levels, then gains +1 at every further level.

In 3rd edition each level of fighter gains +1 on the character’s attack bonus.

In my opinion this makes the whole process more streamlined, because now the fighter becomes the baseline for combat progression. I actually am thinking of going even further and making the first level of clerics, wizards, and specialists into +0, to show that no, they really aren’t specialized in fighting. (which might be better, because I already increased their chance for multiple spells a day)

So here we go, the homebrew I am building will use attack bonuses and ascending armor.

Fighters now gain +1 per level, the others are slightly more useless in a fight.


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